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The flux method is a crystal growth method where starting materials are dissolved in a solvent (flux), and are precipitated out to form crystals of a desired compound. The flux lowers the melting point of the desired compound, analogous to a wet chemistry recrystallization. [1]
Silicon crystal being grown by the Czochralski method at Raytheon, 1956. The induction heating coil is visible, and the end of the crystal is just emerging from the melt. The technician is measuring the temperature with an optical pyrometer. The crystals produced by this early apparatus, used in an early Si plant, were only one inch in diameter.
Here are 3 DIY hacks for making your own home fragrances! The post These DIYs make home fragrance a breeze appeared first on In The Know.
The English word frankincense derives from the Old French expression franc encens, meaning 'true incense', maybe with the sense of 'high quality incense'. [4] [2] The adjective franc in Old French meant 'noble, true', in this case perhaps 'pure'; although franc is ultimately derived from the tribal name of the Franks, it is not a direct reference to them in the word francincense.
Galaxolide (trade name; also known as Abbalide, Pearlide, Astrolide, Musk 50, Polarlide; chemical name 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8,-hexamethyl-cyclopenta[g]benzopyran or HHCB, hexamethylindanopyran) is a synthetic musk with a clean sweet musky floral woody odor used in fragrances. It is one of the musk components that perfume and cologne ...
Manufacturer's Overhead: $15. A big chunk of the perfume price goes toward the manufacturer's corporate overhead -- everything from the salary of the brand's CEO to corporate office expenses.
Fragrance extraction refers to the separation process of aromatic compounds from raw materials, using methods such as distillation, solvent extraction, expression, sieving, or enfleurage. [1] The results of the extracts are either essential oils , absolutes , concretes , or butters , depending on the amount of waxes in the extracted product.
A single-crystal quartz bar grown by the hydrothermal method. In the case of metal single crystals, fabrication techniques also include epitaxy and abnormal grain growth in solids. [10] Epitaxy is used to deposit very thin (micrometer to nanometer scale) layers of the same or different materials on the surface of an existing single crystal. [11]